<!-- 配置路径扩展名映射的媒体类型 -->

    <bean name="pathExtensionContentNegotiationStrategy"

        class="org.springframework.web.accept.PathExtensionContentNegotiationStrategy">

        <constructor-arg>

            <props>

                <!-- if romePresent -->

                <prop key="atom">application/atom+xml</prop>

                <prop key="rss">application/rss+xml</prop>

                <!-- endif -->

                <!-- if jackson2Present || jacksonPresent -->

                <prop key="json">application/json</prop>

                <!-- endif -->

                <!-- if jaxb2Present -->

                <prop key="xml">application/xml</prop>

                <!-- endif -->

            </props>

        </constructor-arg>

    </bean>  

    <!-- 配置映射媒体类型的策略 -->

    <bean name="mvcContentNegotiationManager"

        class="org.springframework.web.accept.ContentNegotiationManager">

        <constructor-arg>

            <list>

                <ref bean="pathExtensionContentNegotiationStrategy" />

            </list>

        </constructor-arg>

    </bean>  

    <!-- 配置方法级别的@RequestMapping处理器 -->

    <bean name="requestMappingHandlerMapping"

        class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">

        <property name="order" value="0" />

        <property name="contentNegotiationManager" ref="mvcContentNegotiationManager" />

    </bean>  

    <!-- 配置数据转换服务，默认使用格式化数据转换服务，可以对日期和数字进行格式化 -->

    <bean name="conversionService"

        class="org.springframework.format.support.DefaultFormattingConversionService">

        <constructor-arg index="0">

            <null></null>

        </constructor-arg>

        <constructor-arg index="1">

            <value>true</value>

        </constructor-arg>

    </bean>  

    <bean name="validator"

        class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"></bean>  

    <!-- 配置数据绑定，通过转换服务实现绑定，如果包含jsr303实现还将进行校验 -->

    <bean name="webBindingInitializer"

        class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">

        <property name="conversionService" ref="conversionService" />

        <!-- if jsr303Present -->

        <property name="validator" ref="validator" />

        <!-- endif -->

    </bean>  

    <bean name="byteArrayHttpMessageConverter"

        class="org.springframework.http.converter.ByteArrayHttpMessageConverter"></bean>

    <bean name="stringHttpMessageConverter"

        class="org.springframework.http.converter.StringHttpMessageConverter">

        <property name="writeAcceptCharset" value="false" />

    </bean>

    <bean name="resourceHttpMessageConverter"

        class="org.springframework.http.converter.ResourceHttpMessageConverter"></bean>

    <bean name="sourceHttpMessageConverter"

        class="org.springframework.http.converter.xml.SourceHttpMessageConverter"></bean>

    <bean name="allEncompassingFormHttpMessageConverter"

        class="org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter"></bean>

    <bean name="atomFeedHttpMessageConverter"

        class="org.springframework.http.converter.feed.AtomFeedHttpMessageConverter"></bean>

    <bean name="rssChannelHttpMessageConverter"

        class="org.springframework.http.converter.feed.RssChannelHttpMessageConverter"></bean>

    <bean name="jaxb2RootElementHttpMessageConverter"

        class="org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter"></bean>

    <bean name="mappingJackson2HttpMessageConverter"

        class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"></bean>

    <bean name="mappingJacksonHttpMessageConverter"

        class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></bean>  

    <!-- 配置@RequestBody，@ResponseBody注解可用的转换器 -->

    <util:list id="messageConverters"

        list-class="org.springframework.beans.factory.support.ManagedList.ManagedList">

        <ref bean="byteArrayHttpMessageConverter" />

        <ref bean="stringHttpMessageConverter" />

        <ref bean="resourceHttpMessageConverter" />

        <ref bean="sourceHttpMessageConverter" />

        <ref bean="allEncompassingFormHttpMessageConverter" />

        <!-- if romePresent -->

        <ref bean="atomFeedHttpMessageConverter" />

        <ref bean="rssChannelHttpMessageConverter" />

        <!-- endif -->

        <!-- if jaxb2Present -->

        <ref bean="jaxb2RootElementHttpMessageConverter" />

        <!-- endif -->

        <!-- if jackson2Present -->

        <ref bean="mappingJackson2HttpMessageConverter" />

        <!-- endif -->

        <!-- if jacksonPresent -->

        <ref bean="mappingJacksonHttpMessageConverter" />

        <!-- endif -->

    </util:list>  

    <!-- 将任意类型的Controller适配为Handler -->

    <bean name="requestMappingHandlerAdapter"

        class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">

        <property name="contentNegotiationManager" ref="mvcContentNegotiationManager" />

        <property name="webBindingInitializer" ref="webBindingInitializer" />

        <property name="messageConverters" ref="messageConverters" />

    </bean>  

    <!-- 这个拦截器暴露转换器服务让spring:bind和spring:eval标签可用 -->

    <bean name="csInterceptor"

        class="org.springframework.web.servlet.handler.ConversionServiceExposingInterceptor">

        <constructor-arg index="0">

            <ref bean="conversionService" />

        </constructor-arg>

    </bean>  

    <!-- 现在所有拦截器都必须设定响应的路径映射 -->

    <bean name="mappedCsInterceptor"

        class="org.springframework.web.servlet.handler.MappedInterceptor">

        <constructor-arg index="0">

            <null></null>

        </constructor-arg>

        <constructor-arg index="1">

            <ref bean="csInterceptor" />

        </constructor-arg>

    </bean>  

    <!-- 使用@ExceptionHandler注解的方法来处理Exception，优先级为0（最高） -->

    <bean name="exceptionHandlerExceptionResolver"

        class="org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver">

        <property name="contentNegotiationManager" ref="mvcContentNegotiationManager" />

        <property name="messageConverters" ref="messageConverters" />

        <property name="order" value="0" />

    </bean>  

    <!-- 如果抛出的Exception类带有@ResponseStatus注解，响应返回该注解的Http状态码，优先级为1 -->

    <bean name="responseStatusExceptionResolver"

        class="org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver">

        <property name="order" value="1" />

    </bean>  

    <!-- SpringMvc内部异常处理 -->

    <bean name="defaultExceptionResolver"

        class="org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver">

        <property name="order" value="2" />

    </bean>